F. MARK THE STATEMENT AS TRUE OR FALSE:-
1. Kilometre unit is used to measure long distances. _________
2. SI unit of time is hour. _________
3. Laboratory thermometer is used to measure temperature of human body as well as in science laboratory._________
4. Conversion of Fahrenheit into degree celsius is given by C = F-32/9 x5. _________
5. 1 second = 1/86400 th part of a mean solar day. _________
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